AWS offers the most services out of any cloud provider and they keep adding more and more services all the time. So there is a lot of investments and they support what they do. The issue I see with AWS is things get complex because you are not sure which service you should use and if you need support, then you are out of luck. Our issue is we could not find out the estimate of the cost or if we are provisioned properly. I was bugged when we could not get someone from AWS to help us out. But overall, they have the most services of all